The PhD candidate is said to have bullied, intimidated and discriminated against his colleagues on the basis of origin, gender and pregnancy. At the end of March he received an email from his professor, who made it clear to him that he was not welcome in the Nicolaas Bloembergen building, where he worked, for the time being. “Several employees have expressed concerns and indicate that they and others feel unsafe in your presence.” There are said to have been several incidents.